We look at the division of 342058 by 12 
The aim is to understand the frequency of 12 in 342058.

Moving on to step 1:
12 can be fit into 3 0 times, resulting in a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 12

Moving on to step 2:
12 can be fit into 34 2 times, resulting in a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 24 from 34, we get 10.
Append the next digit (2) from the dividend to 10 and continue with: 102 / 12

Let's proceed to step 3:
If we divide 102 by 12, we get 8 and a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 28.0
Deduct 96 from 102 and we're left with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 12

Moving on to step 4:
60 divided by 12 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 285.0
If we take 60 away from 60, we end up with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 12

Step 5:
12 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 2850.0
If we subtract 0 from 5, we get 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 12

Let's proceed to step 6:
12 can be fit into 58 4 times, resulting in a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 28504.0
Subtract 48 from 58 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
12 can be fit into 100 8 times, resulting in a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 28504.8
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
The number 12 fits into 40 3 times, leaving a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 28504.83
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
When dividing 40 by 12, we get 3 with a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 28504.833
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 28504.833 with a remaining 0.0004.